160 ORNITHOLOGICAL EXPLORATIONS. 



eud of the mouth, I fouud tliis duck very common at the mouth of the 

 rivers, w hich at that time were still partly ice-bound. It was then, by 

 far, easier to approach than any other of the many kinds of ducks assem- 

 bled there waiting for the general breaking up of the rivers. 



71. Aythya fuligula (Lix.). 



1758. — Alias fuligula Lin., Syst. Nat., 10 ed., I. p. 128. — Pall., Zoogr. Ross. As., II, 

 p. 265.— Temm. & SCHLEG., Fauu. Jap. Av. (p.— ) (1870).— Middexd., Sibir. 

 Reis., II, jJ (p. 47) (1853).— Schrexck, Reis. Auiurl., I, p. 4>-4 (18K0).— 

 Radde, Reis. Sud. Ost-Sibir., II, (p. 375) (I8m).—Plat!jpu8f. Dybow. & 

 Par VEX, J. f. Oru., 18(38, p. 339. 



1816.— Anas crhiata Leach, Syst. Cat. M. B. Br. Miis., p. 39 (^ncc Gmel. 1788). — 

 Fuhf/ulac. SwiNH . Ibis, 18G1, p. 345.— /d., ibid., 18C2, p. 254.— /rf., ibid, 1867, 

 p. 399.— Jrf., P. Z. S., 1863, p. 3-J4.— Pkzew., Pntescb. Us.sur.(n. 209)(1870).— 

 Taczan., J. f. Oni., 1873, p. UO.— Id., iiirf., 1874, p. 337.— /rf., Orn. Faun. Vost. 

 Sibir., p. 70 {1817).— Id., Bull. Soc. Zool. France, 1877, p. 47.— Id., ibid., 1883, 

 p. 344.— Blakist, Ibis, 1887, p. 147. — Id., Amend. List B. Jap., p. 9.— Blak- 

 IST.«S: Pryeu, Ibis, 1»7'^, p. 214.— lid., Tr. As. Soc. Jap., VIII, 1880, p. 186.— 

 lid., ibid, X, 1882, p. 99.— Seeb., Ibis. 1879, i^.'22.—FuHx c. Swinh., P. Z. S., 

 1871, p. 419. 



1826. — Anas cuh/wbis Pall., Zoogr. Ross. As., II, p. 266. 



Although not uncommon in Kamtschatka this duck is only of casual 

 occurrence on Bering Island where a single pair was shot on the 7th 

 of June, 1883, in Kamennij Valley, being in company with several A. 

 marila. Only the male was fit for preservation. It is probable that 

 another male was shot during my absence in Petropaulski, in the latter 

 part of May. 



The measurements are as follows : 



^ ad. U. S. Nat. Mus. No. 92845; L. Sltjneger No. 2134. Bering Island, June 7, 1883. 



Total length, 417'"'°. Tail beyond wings, H"""". Wing, 199"™ ; tail-feathers, 53™" ; 

 culnieu, 41"">; tarsus, 36"™; middle toe with claw, 61™". 



Iris clear gamboge yellow. Bill grayish-blue; nail black. Feet gray, with a faint 

 olive tinge ; joints darker ; webs blackish. Very fat. 



72. Aythya marila (Lin.). 



1761. — Anas marila Lin., Fauu. Svecica, 2 ed., p. 39. — Middend., .Sibir. Keis., II, 2 (p. 

 328) (1853).— Radde, Reis. Siid. Ost-Sibir., II (p. 375) (1863).— Przew., 

 Putesch. Ussur. (n. 210) (1870).— Fuligula in. Savinh., Ibis, 1861, p. 345.— /c7., 

 ibid., 1862, p. 254.— 7rf., P. Z. S., 1863, p. 324.— Whitely, Ibis, lt67, p. 208.— 

 Taczax., J. f. Oru., 1873, p. 110.— Id., ibid., 1876, p. 202.— Id., Oru. Fauu. 

 Vost. Sibir., p. 70 (1877).— /d., Bull. Soc. Zool. France, 1877, p. 47.— Id., 

 ibid., 1883, p. 344 (marita, err. typ.).— Blakist. & Pryer, Ibis, 1878, p. 214.— 

 lid., Tr. As. Soc. Jap., VIII, 1880, p. 185.— lirf., ibid., X, 1882, p. 98.— Bla- 

 kist., Amend. List B. Jap., p. 9 {lS84).—Plat!ipu8 m. Dybow. & Parvex, 

 J. f. Oru., 1868, p. 'd^9.—Fulixm. SwiNH., P. Z. S. 1871, p. 419.— Id., Ibis, 

 1875, p. 457. 



